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 While reading アフリカの奇跡 by Yoshiyuki Sato, I came across with the term Triple Bottom Line (TBL). It was briefly explained in the book and I found it interesting, so I decided to do a little research on it.
 
-The term was coined by John Elkington, who is often describes as "Godfather of Sustainability," in 1994. The TBL is an accounting framework that measures performance in business in three dimensions: finance (profits), social (people) and environmental (planet). The TBL dimensions are often called the three Ps. 
+The term was coined by John Elkington, who is often described as "Godfather of Sustainability," in 1994. The TBL is an accounting framework that measures performance in business in three dimensions: finance (profits), social (people) and environmental (planet). The TBL dimensions are often called the three Ps. 
 
 There is no universally accepted method for calculating the three dimensions of the TBL (some advocate a monetary unit, other suggest an index). Collecting applicable data for calculation is also challenging.